From owner-photosynthesis@net.bio.net Wed Nov 01 22:00:00 1995 Path: biosci!ASUCHM.LA.ASU.EDU!psres From: psres@ASUCHM.LA.ASU.EDU (Larry Orr) Newsgroups: bionet.photosynthesis Subject: student in need of information Date: 2 Nov 1995 07:58:29 -0800 Organization: BIOSCI International Newsgroups for Molecular Biology Lines: 30 Sender: daemon@net.bio.net Distribution: world Message-ID: Can anyone help this student find basic photosynthesis information? Thanks, Larry >Date: Wed, 1 Nov 1995 14:04:49 -0700 (MST) >From: Mindy McWilliams >Subject: student in need of information >To: psres@ASUCHM.LA.ASU.EDU >Mime-Version: 1.0 > >I am a high school student in Calgary, Canada who is presently doing a >school project on photosynthesis. I found your address on a nice list >pertaining to photosynthesis. I am looking for possible sources of >information at my level. All information would be of great help to me. Thank >you for your time. > >Mindy McWilliams abe5@educ.ucalgary.ca >Mindy McWilliams > ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Larry Orr tel: 602-965-1963 Photosynthesis Research fax: 602-965-2747 Department of Chemistry and Biochemistry email: PSRES@asuchm.la.asu.edu Arizona State University Box 871604 Tempe, AZ 85287-1604 U.S.A. From owner-photosynthesis@net.bio.net Fri Nov 03 22:00:00 1995 Path: biosci!biosci!not-for-mail From: kristoff@net.bio.net (David Kristofferson) Newsgroups: bionet.photosynthesis Subject: PHOTOSYNTHESIS/bionet.photosynthesis is now moderated! Date: 4 Nov 1995 07:17:29 -0800 Organization: BIOSCI International Newsgroups for Biology Lines: 86 Approved: photosyn-moderator@net.bio.net Distribution: world Message-ID: <47g069$hsq@net.bio.net> NNTP-Posting-Host: net.bio.net In order to combat the increasing amount of malicious junk mail on the Internet, PHOTOSYNTHESIS/bionet.photosynthesis is now moderated. All messages are forwarded to the moderator, Larry Orr, for review prior to posting. The revised newsgroup charter is given below. Sincerely, Dave Kristofferson BIOSCI/bionet Manager biosci-help@net.bio.net IMPORTANT - Status change only (to moderated) on an existing newsgroup! Information for PHOTOSYNTHESIS/bionet.photosynthesis (moderated) USENET newsgroup name: bionet.photosynthesis Status: Moderated One line description: Research into photosynthesis. Moderation address: photosyn-moderator@net.bio.net (bionet-photosynthesis@net.bio.net is an alias for photosyn-moderator@net.bio.net) Moderator: Mr. Larry Orr ASU Photosynthesis Center/Admin. Assoc. Mailing list name: PHOTOSYNTHESIS E-mail posting addresses: photosyn@net.bio.net photosyn@daresbury.ac.uk Newsgroup Charter and Moderation Policy: PHOTOSYNTHESIS/bionet.photosynthesis is to be used for the posting of messages, queries, and announcements that may be of interest to the general photosynthesis community. These may include: requests for technical information regarding protocols, material, equipment, etc., used for photosynthesis-related research; advertisement of academic positions and request for employment (including postdoctoral positions, studentships, etc.); distribution of photosynthesis-related journal and abstract listings; announcements of scientific meetings; requests for assistance in the teaching of photosynthesis at all academic levels; other assorted announcements that would be of interest to the photosynthesis community. IMPORTANT!! Moderation Policy. The purpose of moderation is to prevent irrelevant postings from being distributed in this newsgroup. In general, the following types of messages will be targeted for rejection: chain letters; commercial advertisements; racist/ethnic/religious/sexist messages; and wide-area cross-posted messages (spams). In the first instance, messages will be judged on the basis of the "Subject:" line appearing in the header. Messages with an obviously irrelevant "Subject:" line in the header will be rejected without reference to the main text. Messages may also be rejected for other reasons, e.g. excessive length. Otherwise the moderation policy will be based on a liberal interpretation of the newsgroup charter, i.e. anything marginally suitable will be accepted. It is the responsibility of the posters, not the moderator, to read the newsgroup usage instructions for bionet.photosynthesis. In order to ensure acceptance of their posts, contributors should ensure that their posts are: 1) Relevant to the newsgroup charter. 2) Sufficiently important to warrant distribution via this medium. 3) Have a suitable "Subject:" line in the header (messages without a Subject are in danger of rejection without further checking). In some cases, rejected messages may be resubmitted after revision, or with a suitable explanation to the moderator. Continuing disputes may be resolved by appeal (of the contributor) to biosci-help@net.bio.net. IMPORTANT DISCLAIMER - The moderator's sole function is to filter out messages that do not appear to conform to the newsgroup charter above and distribute messages that do appear to conform to the newsgroup charter. However, in all cases the content of a message is the sole responsibility of its author. Neither the moderator, nor the administrators of the BIOSCI/bionet news hierarchy shall bear any liability for allowing the appearance of articles with offensive or damaging content. Readers assume all responsibility for confirming on their own the accuracy of the messages posted to the newsgroup. From owner-photosynthesis@net.bio.net Mon Nov 06 22:00:00 1995 Path: biosci!biosci!not-for-mail From: Karen Culver-Rymsza Newsgroups: bionet.photosynthesis Subject: O2 depression Date: 7 Nov 1995 13:56:13 -0800 Organization: BIOSCI International Newsgroups for Molecular Biology Lines: 29 Sender: daemon@net.bio.net Approved: larry.orr@asu.edu (Larry Orr) Distribution: world Message-ID: NNTP-Posting-Host: net.bio.net Dear fellow Photosynthesis-ers I have been running experiments using the Hansatech oxygen electrode on variously treated marine algae. I have observed a depression in oxygen evolution at light levels near saturating. The O2 evolution dips showing consumption for up to 4 minutes, then returns to near maximum rates. I have been unable to find any description of this phenomenon in the literature. It does not compare to initial "lights-on"-type activity because the cells have been exposed to increasing light levels. It is possible this represents some corrective action, as the culture is neither O2 purged or CO2 enriched (as part of the experiemtnal design, potential CO2 limitation/O2 competition is significant). However, Mehler activity/photorespiration of this magnitude seems unlikely (the O2 consumption rate is on the order of 50% max O2 evolution rate) Has anyone similar observations, and if so, plausible explanations? Thank you in advance, Karen Culver-Rymsza University of Rhode Island Graduate School of Oceanography Narragansett, RI 02882 kculver@gsosun1.gso.uri.edu From owner-photosynthesis@net.bio.net Mon Nov 06 22:00:00 1995 Path: biosci!biosci!not-for-mail From: larry.orr@asu.edu (Larry Orr) Newsgroups: bionet.photosynthesis Subject: Welcome to Your Newly Moderated Group Date: 7 Nov 1995 13:24:36 -0800 Organization: BIOSCI International Newsgroups for Molecular Biology Lines: 22 Sender: daemon@net.bio.net Approved: larry.orr@asu.edu (Larry Orr) Distribution: world Message-ID: NNTP-Posting-Host: net.bio.net As announced a couple days ago, the Photosynthesis newsgroup is now a moderated group. The changes are transparent and you do not need to change the manner in which you send messages. I will be serving as the principal moderator and it will be my job to attempt to stop messages that are not related to the charter of this group. Unfortunately, some experienced hackers are able to circumvent the moderation process and SPAM messages (those sent to a multitude of groups) may occasionally get through. If they do, please delete them from your computer. It will not be necessary to inform me, as I will also get a copy. Remember to send messages to the PHOTOSYN newsgroup as you have been doing. Do not send them directly to me as I will not know if you intended to post them or not. Larry From owner-photosynthesis@net.bio.net Mon Nov 06 22:00:00 1995 Path: biosci!biosci!not-for-mail From: larry.orr@asu.edu (Larry Orr) Newsgroups: bionet.photosynthesis Subject: Contents, Photosynthesis Research, 45:1, 1995 Date: 7 Nov 1995 14:07:06 -0800 Organization: BIOSCI International Newsgroups for Molecular Biology Lines: 53 Sender: daemon@net.bio.net Approved: larry.orr@asu.edu (Larry Orr) Distribution: world Message-ID: NNTP-Posting-Host: net.bio.net Photosynthesis Research Contents volume 45 No. 1, July 1995 Regular Papers Decrease of polypeptides in the PS I antenna complex with increasing growth irradiance in the red alga Porphyridium cruentum S. Tan, G.R. Wolfe, F.X. Cunningham, Jr, E. Gantt ......................1-10 Coregulation of electron transport through PS I by Cyt b6f, excitation capture by P700 and acceptor side reduction. Time kinetics and electron transport requirement A. Laisk, V. Oja .....................................................11-19 Rearrangement of light harvesting bacteriochlorophyll homologues as a response of green sulfur bacteria to low light intensities C.M. Borrego, L.J. Garcia-Gil .......................................21-30 Interatiction of the photosynthetic and respiratory electron transport chains producing slow O2 signals under flashing light in Synechocystis sp. PCC 6803 P.C. Meunier, R.L. Burnap, L.A. Sherman ............................31-40 Rapid isolation of Photosystem I chlorophyll-binding proteins by anion exchange perfusion chromatography S.E. Tjus, M. Roobol-Boza, L.O. Paisson, B. Andersson .............41-49 Functional analysis of the iron-stress induced CP 43' polypeptide of PS II in the cyaonobacterium Synechococcus sp. PCC 7942 S. Falk, G. Samson, D. Bruce, N.P.A. Huner, D.E. Laudenbach ....... 51-60 Functional phycobilisome core structures in a phycocyanin-less mutant of cyaonbocterium Synechococcus sp. PCC 7942 R.P. Bhalerao, T. Gillbro, P. Gustafsson .........................61-70 Restoration of the high potential form of cytochrome b-559 through the photoreactivation of Tris-inactivated oxygen-evolving center N. Mizusawa, M. Ebina, T. Yamashita ..............................71-77 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Larry Orr Larry.Orr@ASU.edu Photosynthesis Center tel: (602) 965-1963 Dept. of Chemistry & Biochemistry fax: (602) 965-2747 Arizona State University Box 871604 Tempe, AZ 85287-1604 USA http://aspin.asu.edu/provider/photosyn/ From owner-photosynthesis@net.bio.net Tue Nov 07 22:00:00 1995 Path: biosci!biosci!not-for-mail From: Larry.Orr@asu.edu (Larry Orr) Newsgroups: bionet.photosynthesis Subject: another info request from student Date: 8 Nov 1995 07:19:16 -0800 Organization: BIOSCI International Newsgroups for Molecular Biology Lines: 29 Sender: daemon@net.bio.net Approved: larry.orr@asu.edu (Larry Orr) Message-ID: Can anyone help another student? >Date: Sun, 05 Nov 1995 14:48:11 -0500 >From: gwarden@erinet.com >Subject: Photosynthesis >To: Larry.Orr@asu.edu >MIME-version: 1.0 > >Larry, > >I am a high school freshman doing a science fair experiment on the effect of >various sources of light on plant growth. I am having a difficult time >locating >good sources of information -- text books, articles, etc --. > >I know you probably get quite a number of these kinds of requests, but >could you >direct me to some texts and/or articles that I could use in my research? > >Thank you, > >Rachel > >I am using my dad's email address: gwarden@erinet.com From owner-photosynthesis@net.bio.net Tue Nov 07 22:00:00 1995 Path: biosci!biosci!not-for-mail From: Newsmgr@Queens-Belfast.AC.UK Newsgroups: bionet.photosynthesis Subject: CFo-III stoichiometry Date: 7 Nov 1995 21:20:16 -0800 Organization: BIOSCI International Newsgroups for Molecular Biology Lines: 26 Sender: daemon@net.bio.net Approved: Larry.Orr@asu.edu (Larry Orr) Distribution: world Message-ID: <00998E5F.86785240.2@v2.qub.ac.uk> NNTP-Posting-Host: net.bio.net Relay-Version: ANU News - V6.1B9 05/16/94 VAX/VMS V5.5-2; site queens-belfast.ac.uk Path: queens-belfast.ac.uk!strath-cs!nntp0.brunel.ac.uk!sunsite.doc.ic.ac.uk!dares bury!biosci!UBVMS.CC.BUFFALO.EDU!HOLLINGS Newsgroups: bionet.photosynthesis Subject: CFo-III stoichiometry Message-ID: <01HX4SMY12FE8XZCZ0@ubvms.cc.buffalo.edu> From: HOLLINGS@UBVMS.CC.BUFFALO.EDU Date: 1 Nov 1995 12:08:44 -0800 Sender: daemon@net.bio.net Distribution: world Organization: University at Buffalo NNTP-Posting-Host: net.bio.net Lines: 8 Has there been any consensus reached at to the number of CFo-III subunits found in the chloroplast proton-translocating ATP synthase/ATPase complex? I have references stating that there are five per complex and other references that state there are eleven. Thanks for your thoughts, Margaret (Hollingsworth, SUNY at Buffalo) From owner-photosynthesis@net.bio.net Tue Nov 07 22:00:00 1995 Path: biosci!biosci!not-for-mail From: griebeno@athena.mit.edu (Kai Griebenow) Newsgroups: bionet.photosynthesis Subject: Re: O2 depression Date: 8 Nov 1995 07:22:38 -0800 Organization: Massachusetts Institute of Technology Lines: 68 Sender: daemon@net.bio.net Approved: larry.orr@asu.edu (Larry Orr) Distribution: world Message-ID: <47qfij$nub@senator-bedfellow.MIT.EDU> Hi, In article , Karen Culver-Rymsza writes: |> |> Dear fellow Photosynthesis-ers |> |> I have been running experiments using the Hansatech oxygen electrode on |> variously treated marine algae. I have observed a depression in oxygen |> evolution at light levels near saturating. The O2 evolution dips |> showing consumption for up to 4 minutes, then returns to near maximum rates. I think you should look for the name Nultsch in the literature, he has done studies on such phenomena. We even did experiments at the Philipps University Marburg on exactly that subject. |> |> I have been unable to find any description of this phenomenon in the |> literature. It does not compare to initial "lights-on"-type activity |> because the cells have been exposed to increasing light levels. Nultsch and co-workers did a lot on pre-treatment of Algae with very high intensity light leading to photoinhibition. |> |> It is possible this represents some corrective action, as the culture is |> neither O2 purged or CO2 enriched (as part of the experiemtnal design, |> potential CO2 limitation/O2 competition is significant). However, Mehler |> activity/photorespiration of this magnitude seems unlikely (the O2 |> consumption rate is on the order of 50% max O2 evolution rate) |> |> Has anyone similar observations, and if so, plausible explanations? Plausible explanations are many out there. I am unfortunately too far away from that area of photosynthesis to remember now everything correctly. I am sure there is a whole lot about that subject out there, especially on marine algae that are low-light adapted. |> |> Thank you in advance, |> |> Karen Culver-Rymsza |> University of Rhode Island |> Graduate School of Oceanography |> Narragansett, RI 02882 |> kculver@gsosun1.gso.uri.edu |> |> Sincerely Dr. Kai Griebenow griebeno@mit.edu http://web.mit.edu/griebeno/www/ ********************************************************* * * * Want to see nice kites? * * Try: http://web.mit.edu/griebeno/www/kites.html * * * ********************************************************* From owner-photosynthesis@net.bio.net Tue Nov 07 22:00:00 1995 Path: biosci!biosci!not-for-mail From: ucbt269 Newsgroups: bionet.photosynthesis Subject: Post-doctoral positions available Date: 8 Nov 1995 07:21:34 -0800 Organization: BIOSCI International Newsgroups for Molecular Biology Lines: 28 Sender: daemon@net.bio.net Approved: larry.orr@asu.edu (Larry Orr) Message-ID: <47q68q$jmv@mserv1.dl.ac.uk> In the Department of Biology at the University College London we are looking for two POST-DOCTORAL RESEARCH ASSISTANTS. 1) A three year position within the Photosynthesis Research Group: a multidisciplinary team using biophysics, biochemistry and molecular biology, to study the biogenesis and functioning of the photosynthetic apparatus. The appointee will use magnetic resonance techniques (EPR and ENDOR) to study photosystem II in wild type and mutants of Chlamydomonas and cyanobacteria. Experiance in these techniques is desirable but not essantial as training will be given. This post is funded by the BBSRC. 2) A three year position to study foreign gene expression in eukaryotic algae. An experiance molecular biologist is sought to investigate the importants of cis-acting elements such as introns and SARs in the expression of transgenes in Chlamydomonas, and to develop a transformation system for the commercially important alga Dunaliella. This post is funded by the Leverhulme Trust. Salary for both appointments will be on the scale for Research Staff Grade 1A within the range UK 14,317 - 17,466 (plus 2,134 London allowance) according to qualifications and relevant experience. Inquieries or applications (CV with the names of two referees) should be either sent to Dr J. Nugent (position 1; Email J.Nugent@ucl.ac.uk) or Dr S. Purton (position 2; Email S.Purton@ucl.ac.uk), Department of Biology, University College London, Gower Street, London WC1E 6BT, UK. Tel. 0171 380 7098, FAX 0171 380 7096. From owner-photosynthesis@net.bio.net Wed Nov 08 22:00:00 1995 Path: biosci!biosci!not-for-mail From: BIOSCI Administrator Newsgroups: bionet.photosynthesis Subject: IMPORTANT: BIOSCI miniFAQ Date: 9 Nov 1995 08:05:12 -0800 Organization: BIOSCI International Newsgroups for Molecular Biology Lines: 198 Sender: daemon@net.bio.net Approved: larry.orr@asu.edu (Larry Orr) Distribution: world Message-ID: <199511081001.CAA19107@net.bio.net> NNTP-Posting-Host: net.bio.net This is a new "miniFAQ" designed to answer the questions that come up the *most frequently*. The main BIOSCI FAQ (Frequently Asked Questions) is accessible on the World Wide Web at URL http://www.bio.net/. Contents: -------- 1) What to do about "spams," i.e., junk mail, ads, etc. 2) Examples of subscribing and unsubscribing to the mailing lists. 3) How to access BIOSCI/bionet newsgroup archives. 4) The BIOSCI user address and research interest directory. 1) What to do about "spams," i.e., junk mail, ads, etc. ------------------------------------------------------- BIOSCI is a set of parallel USENET newsgroups (the "bionet" groups) and mailing lists. The same postings are distributed on both media (except for a small number of mailing-list-only groups at net.bio.net). Unfortunately it is becoming a despicable practice on the Internet (by a few people out to make a fast buck) to do automated mass postings to thousands of newsgroups and mailing lists. These attempts to grab free advertising are refered to as "spams" in the usual, somewhat boneheaded, net terminology. USENET is more susceptible to this practice, and many spams originate on the USENET groups and then are passed on to the mailing lists. However, spammers also get lists of mailing addresses and hit these too, so neither medium is immune. What should you do personally if you get junk mail? --------------------------------------------------- Just delete it and move on without reading it further. Filing a protest is becoming increasingly useless because spammers are often disguising the addresses where the messages are sent from. Unless you really understand Internet mail systems, your attempt at protest by sending replies to the message will often end up being sent to the address of an innocent person that the spammer is victimizing. What can BIOSCI/bionet do to protect its newsgroups? ---------------------------------------------------- The only solution currently available is to moderate the newsgroup. If this newsgroup is already moderated, then you are in good shape. Moderation protects the newsgroups from about 95% of the spams that are being sent to date. This means that someone has to take the time to review each message before it goes out. We have set up software here that simply allows the moderator to forward to an address at net.bio.net messages that (s)he wishes to have distributed. This takes no more time than that needed to read the message and pass it on, say about 1 min. per message. Most newsgroups currently have a discussion leader who is responsible for their newsgroup. The discussions leaders and their e-mail addresses are listed in the BIOSCI Information Sheet which is available on the Web at http://www.bio.net/. If a newsgroup is being hit with too many junk postings, please contact the discussion leader for that group and see if there is interest in moderating the group. Please do not assume that by simply posting a complaint to the newsgroup itself, anyone on the BIOSCI staff will act on your complaint. With close to 100 newsgroups to run, the BIOSCI staff has to rely on the discussion leaders of each newsgroup to report problems directly to us at biosci-help@net.bio.net. We will moderate any of our newsgroups if the discussion leader tells us that the readership of the group wishes to do so and if a moderator is willing to do the work. For most BIOSCI/bionet groups, this entails only a few minutes of work each day. Moderating a newsgroup will resolve probably 95% of the junk postings. Unfortunately there are easy ways for determined spammers to override the moderation mechanism. We are working on new systems to provide access to our newsgroups over the WWW. These should be available soon, probably November 1995, and will allow you to use your Web browser to look at the news postings. While this will not stop spammers from trying to post to the groups, this will give you yet another way, besides using USENET news, to keep the junk out of your personal mail files. 2) Examples of subscribing and unsubscribing to the mailing lists. ------------------------------------------------------------------ PLEASE NOTE: The BIOSCI management does NOT act on subscription/unsubscription requests that are posted improperly to the newsgroups and mailing lists. People who do this only bother everyone on the lists to no avail. Please be sure to follow the proper procedures below. Gory details are in the BIOSCI Information sheets on the Web at http://www.bio.net. Below we give an example utilizing the METHODS-AND-REAGENTS list at both of our two BIOSCI sites: Users in the Americas and Pacific Rim countries who use the BIOSCI ------------------------------------------------------------------ node at computer net.bio.net: ---------------------------- A) Determine the "listname" which is the <=8 character mail address ^^^^^^^^^^^^^ for the group. These can be found in the BIOSCI Info. Sheet. For the METHODS-AND-REAGENTS group the mailing address is methods@net.bio.net. The listname is the portion of the address to the left of the @ sign, i.e., "methods". The listname is used with the "subscribe" and "unsubscribe" commands illustrated below. B) Mail all commands in the body of a mail message addressed to biosci-server@net.bio.net. Do NOT send commands to the newsgroup posting addresses! Leave the Subject: line blank, any text on it will be ignored. C) In the body of your message put one or more of the following commands with an "end" command on the last line, e.g., subscribe methods unsubscribe methods end Do NOT put your e-mail address or other text on these lines. The server only allows you to cancel your subscription if the address on your mail header matches the address on our mailing list. Please ask for help at biosci-help@net.bio.net if your address has changed, e.g., if you know you are on the list but the server tells you that you are not a member. Users in Europe, Africa, and Central Asia who use the BIOSCI node at -------------------------------------------------------------------- computer daresbury.ac.uk (also known as dl.ac.uk): ------------------------------------------------- To subscribe and unsubscribe to/from the BIOSCI lists, you need to specify the full USENET newsgroup name with "bionet-news." prepended. The USENET newsgroup names are listed in the BIOSCI Information sheet on the Web at http://www.bio.net/. For the METHODS-AND-REAGENTS list the USENET newsgroup name is bionet.molbio.methds-reagnts, thus the appropriate commands are sub bionet-news.bionet.molbio.methds-reagnts unsub bionet-news.bionet.molbio.methds-reagnts These commands are included in a message addressed to mxt@dl.ac.uk, NOT to the newsgroup mailing addresses. As usual, include the text in the body of the message as text on the Subject: line is ignored. To unsubscribe from all the lists at the UK node, use unsub bionet-news Please note that if the address in the list is different than the one in your mail message header, you will not be able to unsubscribe by this method. If you have problems, please mail biosci@daresbury.ac.uk. 3) How to access BIOSCI/bionet newsgroup archives. -------------------------------------------------- Back postings of all BIOSCI/bionet newsgroups can be found on the World Wide Web at URL http://www.bio.net/. There are several searchable newsgroup indices at this site. E-mail users can search the BIOSCI archives by using our waismail e-mail server. For instructions send the message help to waismail@net.bio.net. Leave the Subject: line blank (anything entered on the Subject: line is ignored). 4) The BIOSCI user address and research interest directory. ----------------------------------------------------------- Please take this opportunity to add your name, address, and research interest information to the BIOSCI User Address Database if you have not already done so. You can fill out the address form directly through our Web page at URL http://www.bio.net/adrform.html. The address database is reindexed nightly for WWW access (the URL is http://www.bio.net/). If you are not directly on the Internet but can reach it by e-mail, please use our waismail server to access the user directory. waismail use is described above. You can also request a user address form by e-mail from biosci-help@net.bio.net. Please check your database entry from time-to-time to see if your address information is still up-to-date. Because of our limited personnel resources, we ask that you resubmit a *complete* form to revise your entry; we only replace complete entries and do not have resources to edit old forms. Sincerely, Dave Kristofferson BIOSCI/bionet Manager biosci-help@net.bio.net From owner-photosynthesis@net.bio.net Sat Nov 11 22:00:00 1995 Path: biosci!biosci!not-for-mail From: rthomas@wvnvm.wvnet.edu (Richard B. Thomas) Newsgroups: bionet.photosynthesis Subject: postdoc job available Date: 11 Nov 1995 18:03:44 -0800 Organization: BIOSCI International Newsgroups for Molecular Biology Lines: 29 Sender: daemon@net.bio.net Approved: Larry.Orr@asu.edu (Larry Orr) Distribution: world Message-ID: <199511102134.NAA23623@net.bio.net> NNTP-Posting-Host: net.bio.net A post-doc position, starting in Spring 1996, is available in my lab in the Biology Department at West Virginia University. This person will work on a study of the integrated responses of a southeastern forest ecosystem to elevated CO2. This is the FACE study in a loblolly pine forest at Duke University and is a collaborative effort with approximately 15-20 investigators from many universities and laboratories. Applicants should be trained in physiological ecology and well-versed in gas exchange and/or fluorescence technologies. Expertise in plant biochemsitry is also desirable. This person will be based in Morgantown, WV but will be required to make several trips per year (duration 1 to 4 weeks) to Durham, NC. If you are interested please respond by email or regular mail, and include a c.v. and the names of three references (along with email and fax addresses). Please reply to: Richard B. Thomas rthomas@wvnvm.wvnet.edu Department of Biology West Virginia University PO Box 6057, Brooks Hall Morgantown, WV 26506-6057 _________________________ office (304) 293-5201 ext.2516 fax (304) 293-6363 From owner-photosynthesis@net.bio.net Mon Nov 13 22:00:00 1995 Path: biosci!biosci!not-for-mail From: Martin Spalding Newsgroups: bionet.photosynthesis Subject: DOCTORAL FELLOWSHIPS Date: 14 Nov 1995 12:07:12 -0800 Organization: Iowa State University, Ames, Iowa Lines: 57 Sender: daemon@net.bio.net Approved: larry.orr@asu.edu (Larry Orr) Message-ID: <48aqnm$7mt@news.iastate.edu> USDA NATIONAL NEEDS DOCTORAL FELLOWSHIPS IN PLANT BIOTECHNOLOGY AT IOWA STATE UNIVERSITY For Work in: PLANT BIOCHEMISTRY PLANT MOLECULAR BIOLOGY PLANT PHYSIOLOGY Iowa State University is rapidly becoming one of the premier training grounds in the country for plant biotechnology. In recognition of this, the Interdepartmental Plant Physiology Major (IPPM) at Iowa State has been awarded additional USDA National Needs Graduate Fellowships in Plant Biotechnology. IPPM provides research opportunities stressing the development of a strong background in fundamental biology, biochemistry, and molecular biology. The Fellowships provide stipends of $17,000/year for three years to highly qualified Ph.D. students. Additional graduate fellowships and assistantships also are available from IPPM. Always known for its strong programs in traditional genetics and plant breeding, with the advent of a $50,000,000 biotechnology initiative in the late 1980s, Iowa State has become a leader in plant and animal biotechnology. Facilities are excellent. Numerous outstanding faculty who were hired under this initiative have now established themselves as dynamic, active, well-funded researchers on the cutting edge of plant biotechnology research. Rather than huge labs in which the big name leader is rarely seen, here at Iowa State, graduate students enjoy the personal attention and personal excitement of small and medium-sized, but very active labs. Upon graduation, successful students have their choice of positions in industry or as postdocs in the finest research institutions. To obtain application forms and more information about the National Needs Fellowships or IPPM, please send inquiries to: National Needs Fellowships IPPM Graduate Admissions 353 Bessey Hall Iowa State University Ames, IA 50011 or contact us by email: ippm@iastate.edu or visit our World Wide Web Homepage: http://www.public.iastate.edu/~ippm -- ___________________________________________________ Martin H. Spalding, Chair Ph: (515) 294-1749 Interdept Plant Physiology Major FAX (515) 294-1337 Iowa State University E-mail mspaldin@iastate.edu Ames, Iowa 50011 ippm@iastate.edu http://www.public.iastate.edu/~ippm ___________________________________________________ From owner-photosynthesis@net.bio.net Sat Nov 18 22:00:00 1995 Path: biosci!biosci!not-for-mail From: Govindjee Newsgroups: bionet.photosynthesis Subject: Address of Lavorel Date: 19 Nov 1995 09:31:14 -0800 Organization: BIOSCI International Newsgroups for Molecular Biology Lines: 24 Sender: daemon@net.bio.net Approved: Larry.Orr@asu.edu (Larry Orr) Distribution: world Message-ID: NNTP-Posting-Host: net.bio.net I am having difficulty in finding the home address of Professor Jean Lavorel in Southern France.I had it this summer, but it has been misplaced and I need to reach him soon. I will appreciate it if anyone can send Jean Lavorel's address to me.Thanks.Govindjee ------------------------------------------------------------------------------ Govindjee Office telephone: 217-333-1794 Department of Plant Biology Office fax: 217-244-7246 University of Illinois Home telephone:217-337-0627 505 South Goodwin Avenue Home fax: 217-337-6196 265 Morrill Hall Urbana, IL 61801-3707 ---------------------------------------------------------------------------- ----If you want to write a letter to my home, please use the following address: 2401 South Boudreau, Urbana, IL 61801-6655 ............................................................................ .... "The firefly seems a fire, the sky looks flat; Yet sky and fly are neither this nor that" ---------------------------------------------------------------------------- ---- From owner-photosynthesis@net.bio.net Sun Nov 19 22:00:00 1995 Path: biosci!biosci!not-for-mail From: David Walker Newsgroups: bionet.photosynthesis Subject: addresses etc Date: 20 Nov 1995 10:42:28 -0800 Organization: BIOSCI International Newsgroups for Molecular Biology Lines: 12 Sender: daemon@net.bio.net Approved: larry.orr@asu.edu (Larry Orr) Message-ID: <816889992.2482@alegba.demon.co.uk> David Walker (Robert Hill Institute, U.of Sheffield, U.K.) Anyone wishing to reach me at home please use 9,Canterbury Crescent,Sheffield S10 3RW, U.K (mail forwarded by kind neighbours when I am in depths of darkest Northumberland) phone OR fax +44 114 2305904 (calls forwarded by British Telecom) Email David@alegba.demon.co.uk (I take my modem with me) From owner-photosynthesis@net.bio.net Sun Nov 19 22:00:00 1995 Path: biosci!biosci!not-for-mail From: lakleczk@extern.uio.no (Leszek Andrzej Kleczkowski) Newsgroups: bionet.photosynthesis Subject: POST-DOCT position, plant mol.-biol.,biochemistry, Sweden Date: 20 Nov 1995 10:31:47 -0800 Organization: University of Oslo, Norway Lines: 47 Sender: daemon@net.bio.net Approved: larry.orr@asu.edu (Larry Orr) Message-ID: <48qfqd$o4c@ratatosk.uio.no> A post-doctoral position in my laboratory (Dept. Plant Physiology, Umea University, Sweden) is available immediately. The research concerns one of two areas: 1. Mutant complementation, antisense and overexpression of genes involved in sugar/starch partitioning in Arabidopsis The particular goals of this project are: (a) biotechnological modification of control exerted on photosynthetic starch and sucrose metabolism by key rate-limiting enzymes through expression of heterologous genes encoding analogous proteins of different regulatory properties, and (b) manipulation of carbon partitioning to starch and sucrose to modulate plant physiological responses to stress conditions (e.g. cold-stress). Previous experience with the Arabidopsis system, including transformation, is preferable. 2. Hybrid assembly, subunit/domain swapping and affinity labelling of a higher plant ADP-glucose pyrophosphorylase This research requires strong background in techniques of gene expression in a heterologous system (E. coli) and at least some experience with protein/ enzyme work. Please consult our earlier work for more details (J. Biol. Chem. 268: 6228-33, Plant Mol. Biol. 23: 1279-84, Plant Physiol. 101: 179-86, Phytochemistry 37: 1507-15). The post-doctoral position is for 12 months, with a possibility of extension for one more year. The position carries a yearly tax-free salary of ca. 165,000 SKR, plus travel support to Umea (air-fare). the Department of Plant Physiology of the Umea University provides a thriving environment for scientific advancement, with ca. 30 researchers having combined skills in molecular biology, gene technology, plant physiology and biochemistry. Qualified candidates are encouraged to send a letter of interest and their c.v. (including names of references) either through e-mail, fax or snail-mail to: Dr. Leszek A. Kleczkowski Dept. Plant Physiology Umea University S-901 87 Umea SWEDEN e-mail: leszek@sun.fysbot.umu.se fax. 46-90-166676 tel. 46-90-167781 From owner-photosynthesis@net.bio.net Mon Nov 20 22:00:00 1995 Path: biosci!biosci!not-for-mail From: daemon@net.bio.net Newsgroups: bionet.photosynthesis Subject: postdoc opportunity Date: 21 Nov 1995 13:46:33 -0800 Organization: University of Illinois at Urbana Lines: 15 Approved: larry.orr@asu.edu (Larry Orr) Distribution: world Message-ID: <48tf50$55o@vixen.cso.uiuc.edu> NNTP-Posting-Host: net.bio.net John Cheeseman and Evan DeLucia (Integrated Photosynthesis Research Group/Department of Plant Biology) seek a highly creative, motivated, and interactive postdoctoral associate to join our laboratories in addressing questions about the relative importance of different mechanisms of =EBphoto-protection=ED in native plants. These mechanisms include leaf orientation and optical properties, the function of the xanthophyll cycle, and the contribution of antioxidants. Background in photosynthesis research and biochemistry is desirable. Funding for two years is available to US citizens only. Please contact either John Cheeseman (j-cheese@uiuc.edu; 217 333 2385) or Evan DeLucia (delucia@uiuc.edu; 217 333 6177); Department of Plant Biology, University of Illinois, Urbana, IL 61801. From owner-photosynthesis@net.bio.net Mon Nov 20 22:00:00 1995 Path: biosci!biosci!not-for-mail From: cauchie@crpcu.lu (Henri-Michel Cauchie) Newsgroups: bionet.photosynthesis Subject: Help: primary production Date: 21 Nov 1995 10:50:02 -0800 Organization: CRP-CU / CREBS Lines: 38 Sender: daemon@net.bio.net Approved: larry.orr@asu.edu (Larry Orr) Distribution: world Message-ID: <48d6bj$93m@leonardo-da-vinci.infogest.cu.lu> NNTP-Posting-Host: net.bio.net Hi, I'm a PhD student and I'm working on the secondary production in sewage lagoons. As I needed primary production data to analyse the seasonal succession of plankton, I used the "dark and light bottle" method.However, (as I'm a zoologist), I wander if all the steps that I followed are correct... Step 1: I measured the variation of the oxygen content in bottles incubated at 5 depth (Surface, 20 cm, 50 cm, 100 cm and 200 cm) during four hours around noon. Dark bottle incubation was also made during the same period. During the incubation period, I also measured the total Irradiance (Einstein by sqare meter). Step 2: The oxygen quantities (produced by hour and by litre) were converted into fixed carbon (by hour and by litre) by multiplying by 0.375. (APHA 1985)) Step 3: I calculated the production by hour and by square meter for the whole water column by integrating the production measured at the different depth Step 4: I multiplied the production by hour and by square meters by the ratio "Total Irradiance during the day/Total irradiance during the incubation". Any remarks, (even on the spelling or grammar !), are wellcomed. Thank you very much in advance. Henry-Michel CAUXHIE PhD Student UNIVERSITY OF LIEGE BELGIUM From owner-photosynthesis@net.bio.net Tue Nov 21 22:00:00 1995 Path: biosci!biosci!not-for-mail From: Govindjee Newsgroups: bionet.photosynthesis Subject: December 6, 1904 Date: 21 Nov 1995 22:24:07 -0800 Organization: BIOSCI International Newsgroups for Molecular Biology Lines: 27 Sender: daemon@net.bio.net Approved: Larry.Orr@asu.edu (Larry Orr) Distribution: world Message-ID: NNTP-Posting-Host: net.bio.net A Historical Note: December 6, 1995 will be the 91st birthday of William Arnold, an eminent researcher in the field of "biophysics of photosynthesis". Bill lives in Oak Ridge, Tennessee. Photosynthesis Research will be honoring him in 1996 with a special issue "Photosynthetic Unit: Antenna and Reaction Center". If anyone is interested in knowing more about his discoveries, he/she may write to me. Govindjee (Editor, Historical Corner, Photosynthesis Research). ------------------------------------------------------------------------------ Govindjee Office telephone: 217-333-1794 Department of Plant Biology Office fax: 217-244-7246 University of Illinois Home telephone:217-337-0627 505 South Goodwin Avenue Home fax: 217-337-6196 265 Morrill Hall Urbana, IL 61801-3707 ---------------------------------------------------------------------------- ----If you want to write a letter to my home, please use the following address: 2401 South Boudreau, Urbana, IL 61801-6655 ............................................................................ .... "The firefly seems a fire, the sky looks flat; Yet sky and fly are neither this nor that" ---------------------------------------------------------------------------- ---- From owner-photosynthesis@net.bio.net Wed Nov 22 22:00:00 1995 Path: biosci!biosci!not-for-mail From: hteicher@biobase.dk (Harald Teicher) Newsgroups: bionet.photosynthesis Subject: Postdoc opportunity/photosynthesis Date: 23 Nov 1995 08:10:50 -0800 Organization: The Danish BioBase Lines: 18 Sender: daemon@net.bio.net Approved: Larry.Orr@asu.edu (Larry Orr) Distribution: world Message-ID: <491614$c2r@biovax.biobase.dk> NNTP-Posting-Host: net.bio.net [ Article crossposted from bionet.plants ] [ Author was Evan DeLucia ] [ Posted on 21 Nov 1995 21:06:03 GMT ] John Cheeseman and Evan DeLucia (Integrated Photosynthesis Research Group/Department of Plant Biology) seek a highly creative, motivated, and interactive postdoctoral associate to join our laboratories in addressing questions about the relative importance of different mechanisms of photo-protection in native plants. These mechanisms include leaf orientation and optical properties, the function of the xanthophyll cycle, and the contribution of antioxidants. Background in photosynthesis research and biochemistry is desirable. Funding for two years is available to US citizens only. Please contact either John Cheeseman (j-cheese@uiuc.edu; 217 333 2385) or Evan DeLucia (delucia@uiuc.edu; 217 333 6177); Department of Plant Biology, University of Illinois, Urbana, IL 61801. From owner-photosynthesis@net.bio.net Wed Nov 22 22:00:00 1995 Path: biosci!biosci!not-for-mail From: hteicher@biobase.dk (Harald Teicher) Newsgroups: bionet.photosynthesis Subject: Photosynthesis/carbon assimilation in CAM plants Date: 23 Nov 1995 08:03:14 -0800 Organization: The Danish BioBase Lines: 35 Sender: daemon@net.bio.net Approved: Larry.Orr@asu.edu (Larry Orr) Distribution: world Message-ID: <49160j$c2r@biovax.biobase.dk> NNTP-Posting-Host: net.bio.net [ Article crossposted from bionet.plants ] [ Author was Sren Laurentius Nielsen ] [ Posted on Mon, 20 Nov 1995 13:28:05 GMT ] For some years I have worked with intrinsic factors that are likely to limit/regulate plant photosynthesis. With intrinsic factors I mean parameters such as specific leaf area (SLA) and other architectural parameters, chlorophyll content and concentration, N and P content etc. I have recently become interested in CAM plants. Due to their succulence, these plants usually have very thick photosynthetic structures (stems or leaves), which serves them in enabling them to store large quantities of water. However, CAM plants have to pay a price for this: They have low concentrations of N and P, as well as of chlorophyll (this is based on my own measurements as well as on literature values), and they are also reported in the literature to have low growth rates. I would very much like to compare the capacity for photosynthesis (or perhaps rather the capacity for carbon assimilation) of CAM plants with similar capacities for C3 and C4 plants. However, because CAM plants assimilate most of their carbon during night, you can not just go out and measure P-I curves as you can with C3 and C4 plants. I would therefore very much like to hear from people who have any ideas or suggestions on how and under which circumstances to measure and express rates of photosynthesis or carbon assimilation in CAM plants, in a way so that it can be compared with similar rates in C3 and C4 plants. Any ideas, comments, pointers to literature etc. will be welcome. Thanks in advance, Sxren L. Nielsen Department of Life Sciences and Chemistry Roskilde University PO Box 260, DK-4000 Roskilde, Denmark Phone: +45 46 75 77 11, Fax: +45 46 75 77 21 e-mail: nielsen@virgil.ruc.dk From owner-photosynthesis@net.bio.net Wed Nov 22 22:00:00 1995 Path: biosci!biosci!not-for-mail From: larry.orr@asu.edu (Larry Orr) Newsgroups: bionet.photosynthesis Subject: Contents, Photosynthesis Research, 45:2, August, 1995 Date: 22 Nov 1995 10:16:13 -0800 Organization: BIOSCI International Newsgroups for Molecular Biology Lines: 60 Sender: daemon@net.bio.net Approved: larry.orr@asu.edu (Larry Orr) Message-ID: Photosynthesis Research Volume 45 No. 2 August 1995 Minireview Chilling-enhanced photooxidation: The production, action and study of reactive oxygen species produced during chilling in the light R.R. Wise ................................................................79-97 Regular papers Turnover of the D1 protein and of Photosystem II in a Synechocystis 6803 mutant lacking TyrZ W. Vermaas, C. Madsen, J. Yu, J. Visser, J. Meth, P.J. Nixon, B. Diner ..99-104 5-O-[beta]-D-galactopyranosyl-7-methoxy-3',4'-dihydroxy-4-phenylcoumarin, an inhibitor of photophosphorylation in spinach chloroplasts M.R. Calera, R. Mata, A.L. Anaya, B. Lotina-Hennsen ....................105-110 The interactive effects of elevated CO2 and O3 concentration on photosynthesis in spring wheat I.F. McKee, P.K. Farge, S.P. Long ......................................111-119 Kinetic interactions of glycine with substrates and effectors of phosphenolpyruvate carboxylase from maize leaves J. Gillinta, S.D. Grover ...............................................121-126 The donor side of Photosystem II as the copper-inhibitory binding site. Fluorescence and polarografic studies J.B. Arellano, J.J. Lazaro, J. Lopez-Gorge, M. Baron ..................127-134 The IIeL229--> Met mutation impairs the quinone binding to the QB-pocket in reaction centers of Rhodobacter sphaeroides J. Tandori, L. Nagy, A. Puskas, M. Droppa, G. Horvath, P. Maroti ......135-146 The role of chloroplast-encoded protein biosynthesis on the rate of D1 protein degradation in Dunallella salina C. Vasilikiotis, A. Melis .............................................147-155 Photosynthetic energy storage in aquatic leaves measured by photothermal deflection J. Sinclair, C.E. Hall ................................................157-168 Regulation of violaxanthin de-epoxidase activity by pH and ascorbate concentration C.E. Bratt, P.-O. Arvidsson, M. Carlsson, H.-E Akerlund ...............169-175 Book review ...........................................................177-179 Erratum, Volume 44: 23-40, 1995 ..........................................181 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Larry Orr Larry.Orr@ASU.edu Photosynthesis Center tel: (602) 965-1963 Dept. of Chemistry & Biochemistry fax: (602) 965-2747 Arizona State University Box 871604 Tempe, AZ 85287-1604 USA http://aspin.asu.edu/provider/photosyn/ From owner-photosynthesis@net.bio.net Sun Nov 26 22:00:00 1995 Path: biosci!biosci!not-for-mail From: MARDER%agri.huji.ac.il.DECNET@www4.huji.ac.il Newsgroups: bionet.photosynthesis Subject: Photosynthesis Summer School Date: 27 Nov 1995 09:38:50 -0800 Organization: BIOSCI International Newsgroups for Molecular Biology Lines: 123 Sender: daemon@net.bio.net Approved: Larry.Orr@asu.edu (Larry Orr) Distribution: world Message-ID: NNTP-Posting-Host: net.bio.net Relay-Version: ANU News - V6.1B10 04/18/95 OpenVMS AXP; site news.huji.ac.il Path: MARDER Newsgroups: bionet.photosynthesis Subject: Photosynthesis Summer School Message-ID: <499u20$g3c_001@agri.huji.ac.il> From: MARDER@agri.huji.ac.il (Jonathan B. Marder) Date: Sun, 26 Nov 95 14:36:48 GMT Reply-To: bcmalkin@weizmann.weizmann.ac.il Distribution: world Organization: Hebrew University Nntp-Posting-Host: marder.agri.huji.ac.il X-Newsreader: News Xpress Version 1.0 Beta #4 Lines: 107 ANNOUNCMENT - Summer School ************************************************************** * Assembly and Organization of the Photosynthetic Apparatus * * (Photosystems, Antennae and Reaction Centers). * ************************************************************** A summer school sponsored by the European Science Foundation (ESF) Program on Biophysics of Photosynthesis 12-23 May 1996, Weizmann Institute, Rehovot, Israel Organizing Committee: S.Malkin, A. Scherz (Weizmann institute of Science, Rehovot, Israel), H.Levanon (Hebrew University, Jerusalem, Israel) H.Scheer (University of Munich, FRG). We would like to announce a summer school on the organization and assembly of the photosynthetic apparatus. The school will be held between 12-23 May 1996 in the Weizmann Institute, Rehovot, Israel. The provisional program is outlined below. The school is open to graduate and post-graduate students from European countries who are interested in the subject. There is a registration fee of $200, or an equivalent hard currency, which will cover full board and tuition. There is a limitation of 25 participants only. Therefore we might need to preselect suitable candidates, based on different criteria. If you consider participation please apply in writing. Include a resume of studies, personal details (full name, nationality, date of birth, gender) and address details (mailing address, fax, e-mail etc.). Include also a brief (not more than 1 page) resume of your present work, list of publications (if available), and letters of recommendation (preferably from at least 2 mentors). These should be addressed to:- Prof. Shmuel Malkin Biochemistry Department Weizmann Institute of Science Rehovot, 76100, Israel PROGRAM OUTLINE *************** GENERAL SCOPE and AIM Pigment and protein assembly to antennae and reaction centers, and higher hierarchies of assemblies in the formation of whole photosystems and their organization in the complex photosynthetic membrane is a frontier in photosynthesis and membrane protein research. The proposed school is meant to provide an interdisciplinary forum where students from either biochemical or biophysical backgrounds would meet to grasp current knowledge and its methodological basis. The school will comprise of frontal lectures, introducing either a technique or a methodical approach and how it is applied for particular problems, and laboratory presentation of selected methods (according to local availability) followed by data analysis exercises. LIST OF LECTURERS Bertil Andersson. University of Stockholm. Stockholm. Sweden Jim Barber. Imperial College of Science and Technology. London. UK Chanoch Carmeli. Tel Aviv University. Tel Aviv. Israel Richard Cogdell. University of Glasgow. Glasgow. UK Gyozo Garab.Biological Research Center.Hungarian Academy of Sciences, Szeged.Hungary Giovanni Giacometti. University of Padua. Padua. Italy. Rienk van Grondelle. Free University. Amsterdam. The Netherlands. Arnold Hoff. State University of Leiden. Leiden. The Netherlands. Alfred Holzwarth. Max Planck Institute for radiation chemistry. Muellheim. Germany. Neil Hunter. University of Sheffield. Sheffield. UK. Werner Kuehlbrandt. EMBL. Heidelberg. Germany Wolfgang Lubitz. Technical University. Berlin. Germany Shmuel Malkin. The Weizmann Institute of Science. Rehovot. Israel Rachel Nechushtai. Hebrew University. Jerusalem. Israel Jim Norris. University of Chicago. Chicago. Illinois. USA. Itzhak Ohad. Hebrew University. Jerusalem .Israel Harald Paulsen. University of Munich. Munich. Germany. Wolfhart Ruediger. University of Munich. Munich. Germany. Hugo Scheer. University of Munich. Munich. Germany. Avigdor Scherz. Weizmann Institute. Rehovot. Israel LIST OF SUBJECTS Static and dynamic organization of functional components in the thylakoid membrane. Assembly, architecture and function of PS I, PS II and LHC II. Biosynthesis and interactions of photosynthetic pigments. PS II reaction center, integrity and turn-over. Structural dynamics in bacteriochlorophyll-proteins. Molecular genetics and site-directed mutagenesis of reaction centers and antennae of purple bacteria. Characterization of accessory (non chlorophyllous) pigments antennae. Chemical modification of the reaction center and antenna cofactors. Molecular modeling. LIST OF TECHNIQUES X-ray absorption, 2-D diffraction. Magnetic Resonance (EPR, ENDOR, ODMR), Vis/UV/IR absorption spectroscopy (incl. CD, LD), Time resolved spectroscopy, Fluorescence, Thermoluminescence, Photoacoustics. LAB PRESENTATIONS Fluorescence - quenching analysis; Photoacoustics in periodically modulated light - state 1 state 2 transitions; CD and LD spectroscopy; Laser kinetic spectroscopy; Laser induced photoacoustics; Thermoluminescence; Magnetic resonance; Molecular modeling. Non-essential changes may occur in the above program according to circumstances. From owner-photosynthesis@net.bio.net Sun Nov 26 22:00:00 1995 Path: biosci!biosci!not-for-mail From: gcb@gramercy.ios.com Newsgroups: bionet.photosynthesis Subject: Re: Photosynthesis Date: 27 Nov 1995 09:37:41 -0800 Organization: BIOSCI International Newsgroups for Molecular Biology Lines: 51 Sender: daemon@net.bio.net Approved: Larry.Orr@asu.edu (Larry Orr) Distribution: world Message-ID: <199511260112.UAA02763@gramercy.ios.com> NNTP-Posting-Host: net.bio.net >Hello: I sent the following message to Larry Orr and he recommended I resend it to you. Basically I am looking for assistance in the verification of a product which claims to enhance the process of photosynthesis and hence increase crop yield. Where should I start? Many thanks. Guilherme Castello Branco Date: Sun, 19 Nov 1995 10:46:26 -0700 >From: Photosyn@asuchm.la.asu.edu (Larry Orr) >Subject: Re: Photosynthesis >To: Guilherme Castello Branco >X-UIDL: 817348028.000 > >I recommend that you send a similar message to photosyn@net.bio.net > >This is a newsgroup consisting of many of the world's top photosynthesis >researchers. I believe there may be persons at the University of Illinois >that could help you, but I do not know specifically which one, but they all >read the newsgroup. > >Good luck, >Larry Orr > > >>I am looking for assistance in the field of photosynthesis. My name is >>Guilherme Castello Branco, and I am a professional of the banking field. >>Recently I have been offered to market a product in the US, which I would >>categorize as a fertilizer/additive. I have been given a scientific paper >>explaining how this product enhances the process of photosynthesis and >>manages to get higher yields out of crops. >> >>Is there any way that you can help me verify these results? Is it >>possible for me to get an unbiased opinion from an authoritative >>institution about this? I would be willing to send you a sample of the >>product, together with the scientific paper. >> >>So far all I have is good sources who swear that the product works and is >>good. >> >>Can you at least lead me in the right direction? > > > > Guilherme Castello Branco From owner-photosynthesis@net.bio.net Sun Nov 26 22:00:00 1995 Path: biosci!biosci!not-for-mail From: daemon@net.bio.net Newsgroups: bionet.photosynthesis Subject: position available Date: 27 Nov 1995 09:36:09 -0800 Organization: Department of Ornamentals Lines: 86 Approved: Larry.Orr@asu.edu (Larry Orr) Distribution: world Message-ID: <497j3m$j7n@news.uni-c.dk> NNTP-Posting-Host: net.bio.net Department of Ornamentals Head of Research of Post Harvest Physiology The Danish Institute of Plant and Soil Science invites applicants for a post as head of research in the field of post harvest physiology of ornamentals. The post is available as soon as possible. The duration of the appointment is 4 years. =46ields of Responsibility The head of research will bear responsibility for the management and development of a research programme concerning the effect of cultivation conditions on post production quality and vitality of ornamentals. The aim of the programme is to uncover physiological cause-effect relationships as a basis for implementing improved production practices. =46ive scientist and a similar number of technical staff members are involved in the research programme, which is founded with 5,5 mio. DKK per year . The areas of research include root physiology, water and nutrient balances, physical climate influences (light and humidity) and modelling. The head of research is expected to perform research on stress tolerance and water relations. Supervision of graduate students is expected. The head of research will refer to the head of department. Qualifications: Emphasis will be put on: =C4Research qualifications at a high international level within significant fields of the research area in question. =C4Experience in research management. =C4The ability to lead, cooperate, stimulate and motivate. =C4The ability to encourage the scientific collaboration, nationally and internationally, including collaboration with the horticultural industry. Salary and Terms of Employment: The post is a Government post, classified in Scale 36, and currently the salary amounts to DKK 345.766 per annum. A personal supplement is negotiable. However, the appointment is expected to be for a fixed term of 5 years with the possibility of extension. For a fixed-term appointment a supplement to the salary will be granted and the content of the pension terms will be laid down, regard being had to the appointed person already holding a Government post. In total, it is to be expected that salary offered will be at an attractive level corresponding to the demand. The area of activity is the Danish Ministry of Agriculture and Fisheries and its institutions. Until further notice the place of employment will be the Danish Institute of Plant and Soil Science, Research Centre =89rslev. =46or further information, including a detailed description of the post, please contact Ole Voigt Christensen, head of Department +45 65 99 17 66. Applications Applications, marked: post harvest, should be sent to: Ministry of Agriculture and Fisheries Personnel Department, Slotsholmgade 10 DK-1216 Copenhagen K Applications, (in seven copies) including any material that you want to be evaluated during the scientific evaluation of applicants, should be sent to the Ministry of Agriculture and Fisheries by Jan 1 1996. The Danish Institute of Plant and Soil Science is a sectorial research institute under the Ministry of Agriculture and Fisheries with a staff of approx. 550. The research is organized in 10 departments, including Department of Ornamentals. Department of Ornamentals is located at Research Centre =89rslev and comprises a staff of 68, including 34 scientists. From owner-photosynthesis@net.bio.net Mon Nov 27 22:00:00 1995 Path: biosci!biosci!not-for-mail From: fmims@aol.com (FMims) Newsgroups: bionet.photosynthesis Subject: Photosynthetic (and other) action spectra Date: 28 Nov 1995 07:32:23 -0800 Organization: America Online, Inc. (1-800-827-6364) Lines: 18 Sender: daemon@net.bio.net Approved: Larry.Orr@asu.edu (Larry Orr) Distribution: world Message-ID: <49dabq$r7r@newsbf02.news.aol.com> NNTP-Posting-Host: net.bio.net I have developed miniature data loggers that respond to the blue, red and far-red wavelengths to which green plants respond. These loggers will be used in an ongoing study in Texas, Hawaii and an East Coast site. I would be most appreciative of receiving a reference to or an actual tabulated listing of a representative action spectrum and/or absorption spectrum for chlorophyll-a and/or any other light-sensitive pigments in plants. Of course I will acknowledge the original source of such data in any publication. For now I am using absorption spectra of sumac leaves. Thank you for your assistance. Forrest M. Mims III Sun Photometer Atmospheric Network (SPAN) From owner-photosynthesis@net.bio.net Tue Nov 28 22:00:00 1995 Path: biosci!biosci!not-for-mail From: Paola Cappellini Newsgroups: bionet.photosynthesis Subject: Statistics Date: 29 Nov 1995 09:18:35 -0800 Organization: BIOSCI International Newsgroups for Molecular Biology Lines: 14 Sender: daemon@net.bio.net Approved: Larry.Orr@asu.edu (Larry Orr) Distribution: world Message-ID: <9511291100.aa16577@ax433.mclink.it> NNTP-Posting-Host: net.bio.net Dear sir, One of the problems in studying photosynthesis of (fruit)trees on single leaves with portable system is Anova, whose assumption are homoskedasticity and normality of data. Generally, these kind of data violate this assumptions and not always is possible to find a data trasformation suitable for all sets of data. Can someone give any suggestion? Many thanks Paola Cappellini (Rome) e-mail mc6354@mclink.it From owner-photosynthesis@net.bio.net Tue Nov 28 22:00:00 1995 Path: biosci!biosci!not-for-mail From: ddpenna@ag.Arizona.EDU (Dean DellaPenna) Newsgroups: bionet.photosynthesis Subject: Postdoctoral positions available Date: 28 Nov 1995 18:24:17 -0800 Organization: BIOSCI International Newsgroups for Molecular Biology Lines: 59 Sender: daemon@net.bio.net Approved: Larry.Orr@asu.edu (Larry Orr) Distribution: world Message-ID: NNTP-Posting-Host: net.bio.net Two Postdoctoral Research Associates Available Department of Biochemistry University of Nevada, Reno POSITION 1: STRUCTURE AND FUNCTION OF PLANT CELL WALL PROTEINS One postdoctoral position beginning spring or summer 1996 is available to study a new class of plant cell wall proteins, AroGPs (Aromatic Amino Acid Rich GlycoProteins) that are characterized by their unique structure and high content of aromatic amino acids (see Plant Cell 4:1147-1156 and Plant Cell 6:1623-1634). All gene family members from tomato and related genes from Arabidopsis have been isolated and sequenced. The project involves studying the localization, structure and function of AroGPs in various tissues using transgenic systems. Previous experience in molecular techniques is essential, experience in microscopy or protein biochemistry would be helpful but are not essential. POSITION 2: VITAMIN E (TOCOPHEROL) SYNTHESIS AND FUNCTION IN PLANTS A second postdoctoral position beginning spring or summer 1996 is available to study alpha-tocopherol and plastoquinone synthesis and function in plants. A molecular genetic approach to study the pathway is being taken in Arabidopsis. Multiple mutations defining key biosynthetic steps have been identified and characterized (See Norris et al. in press, Dec. Plant Cell). cDNAs for one locus have been cloned and will be used to modify flux through the pathway in both Arabidopsis and tomato. Previous experience in molecular techniques is essential, experience in genetics or biochemistry would be helpful but are not essential. Parties interested in either position should send curriculum vitae, statement of research experience and goals and three letters of reference to: Dawn Arnold, Department of Biochemistry/330, University of Nevada, Reno, NV 89557. Inquiries about either position should be directed to: Dr. DellaPenna, Department of Plant Sciences, University of Arizona, Tucson, Arizona 85721. Telephone (602)621-8725 fax: (602) 621-7186. email DDPENNA@AG.ARIZONA.EDU up until March 1, 1996. After March 1 questions should be directed to Dr. DellaPenna, Department of Biochemistry/330, University of Nevada, Reno, NV 89557, Email della_d@med.unr.edu Application review begins February 1, 1996 and will continue until both positions are filled. The University of Nevada is an Affirmative Action/Equal Opportunity employer. Dean DellaPenna Department of Plant Science Forbes Hall University of Arizona Tucson, AZ 85721 phone 520-621-8725 FAX 520-621-7186 From owner-photosynthesis@net.bio.net Tue Nov 28 22:00:00 1995 Path: biosci!biosci!not-for-mail From: "Price, Carl A" Newsgroups: bionet.photosynthesis Subject: postdoctoral announcements Date: 29 Nov 1995 10:36:46 -0800 Organization: BIOSCI International Newsgroups for Molecular Biology Lines: 18 Sender: daemon@net.bio.net Approved: Larry.Orr@asu.edu (Larry Orr) Distribution: world Message-ID: <49i97u$crp@net.bio.net> NNTP-Posting-Host: net.bio.net The PLANT MOLECULAR BIOLOGY REPORTER is pleased to publish brief announcements without charge of postdoctoral positions in the area of plant molecular biology. We do, however, require a specific request with the announcement directed to: pmbr@mbcl.rutgers.edu The next issue is March 1996, and the deadline for copy is 15 January. C. A. Price Editor, PMBR Waksman Institute Piscataway, NJ 08855-0759, USA price@mbcl.rutgers.edu fax: 1-908-932-5735 From owner-photosynthesis@net.bio.net Tue Nov 28 22:00:00 1995 Path: biosci!biosci!not-for-mail From: 93yazerm@wave.scar.utoronto.ca (YAZER MARK HARRIS) Newsgroups: bionet.photosynthesis Subject: brown algae Date: 29 Nov 1995 10:03:01 -0800 Organization: BIOSCI International Newsgroups for Molecular Biology Lines: 13 Sender: daemon@net.bio.net Approved: Larry.Orr@asu.edu (Larry Orr) Distribution: world Message-ID: <9511280320.AA13598@wave.scar.utoronto.ca> NNTP-Posting-Host: net.bio.net Greetings from cold Canada! I am looking for some recent journal articles having to do with Photosynthesis in Brown Algae at various depths in water and at various wavelengths of light (we were measuring photosynthetic efficiency and the like). I would greatly appreciate any references to current journal articles that you might know about having to do with our project...it's a third year course. Thank you very much, and I look forward to reading your list of articles soon. Mark Yazer University of Toronto From owner-photosynthesis@net.bio.net Wed Nov 29 22:00:00 1995 Path: biosci!biosci!not-for-mail From: Katherine W Osteryoung Newsgroups: bionet.photosynthesis Subject: POSTDOC POSITION Date: 30 Nov 1995 01:18:24 -0800 Organization: BIOSCI International Newsgroups for Molecular Biology Lines: 28 Sender: daemon@net.bio.net Approved: Larry.Orr@asu.edu (Larry Orr) Distribution: world Message-ID: NNTP-Posting-Host: net.bio.net POSTDOCTORAL POSITION MECHANISMS OF CHLOROPLAST DIVISION Department of Biology, University of Nevada, Reno A postdoctoral position is available after April 1, 1996 to investigate the molecular mechanisms governing plastid division in higher plants. Studies will center on the function and regulation of a recently discovered gene from Arabidopsis called cpFtsZ (Nature 376: 473-474). This nuclear gene encodes a chloroplast-localized homolog of the bacterial cell division protein FtsZ, and is the first gene isolated from any eukaryote with a probable function in organelle replication. A Ph.D. and experience in molecular techniques are essential. Experience in microscopy or biochemical techniques helpful. Reno is located 40 minutes from Lake Tahoe and offers outstanding recreational opportunities. The campus is 2 1/2 hours from UC Davis and 4 hours from the San Francisco Bay Area. Send curriculum vitae, brief statement of research experience and goals, and three letters of reference to: Dr. Katherine Osteryoung, Department of Biology/314, University of Nevada, Reno, NV 89557. Phone (520) 621-3977 or (702) 784-6188, email osteryok@gas.uug.arizona.edu. Application review will begin January 5, 1996 and will continue until position is filled. AA/EOE. From owner-photosynthesis@net.bio.net Thu Nov 30 22:00:00 1995 Path: biosci!biosci!not-for-mail From: rochaix@sc2a.unige.ch Newsgroups: bionet.photosynthesis Subject: Photosynthesis Conference Date: 1 Dec 1995 09:58:00 -0800 Organization: BIOSCI International Newsgroups for Molecular Biology Lines: 28 Sender: daemon@net.bio.net Approved: larry.orr@asu.edu (Larry Orr) Distribution: world Message-ID: NNTP-Posting-Host: net.bio.net Announcement Jacques Monod Conference on Synthesis and Function of Photosynthetic Complexes Aussois (France) 25th-29th March, 1996 Four major themes will be discussed: Expression of genes involved in photosynthesis;Transport and targetting of chloroplast proteins;Structure of photosynthetic complexes; Function of photosynthetic components. Invited speakers include A.Barkan,R.Bassi,H.Bottin,P.Chitnis,N.H.Chua, K.Cline,W.Cramer,B.Diner,A.L.Etienne,P.Fromme,J.Gray,W.Haehnel,R.Herrmann, P.Horton,C.Jacq,P.Joliot,J.Joyard,K.Kloppstech,W.Kuhlbrandt, S.Lerbs-Mache,P.Maliga,P.Mathis,J.Mullet,H.Pakrasi,J.D.Rochaix, W.Rutherford,P.Sebban,J.Soll,S.Styring,N.Tandeau de Marsac,C.deVitry, J.Walker,F.A.Wollman. Interested scientists may apply by sending their CV,one page summary of their research interests and a list of their most relevant publications to J.D. Rochaix,University of Geneva,Department of Molecular Biology, 30, Quai Ernest Ansermet,CH-1211 Geneva4, The Jacques Monod Conferences 1996 have been announced in Nature-vol 378-23 November 1995. They are organized by the Life Sciences Department of the Centre National de la Recherche Scientifique (CNRS) in France. From owner-photosynthesis@net.bio.net Thu Nov 30 22:00:00 1995 Path: biosci!biosci!not-for-mail From: baianu@ux1.cso.uiuc.edu (Ion Baianu) Newsgroups: bionet.photosynthesis Subject: Re: student in need of information Date: 1 Dec 1995 09:51:43 -0800 Organization: uiuc Lines: 39 Sender: daemon@net.bio.net Approved: larry.orr@asu.edu (Larry Orr) Distribution: world Message-ID: References: NNTP-Posting-Host: net.bio.net One of the better, recent and clearly written books that contains a reasonable chapter on Photosynthesis is the "Biochemistry" book by D.Voet & J.G.Voet, 2nd Edition, Ch.22, pp.626-649, J. Wiley & Sons, Inc., 1995 : New York as well as several references cited therein on p.659. In such a short space it does not contain ev erything 'basic' in the field, but it is a good start. Good luck! I.C.Baianu P.S. If you have a brief question or two I'd be glad to try to answer them if I can. ICB In article , psres@ASUCHM.LA.ASU.EDU (Larry Orr) wrote: > Can anyone help this student find basic photosynthesis information? > Thanks, > Larry > > > >Date: Wed, 1 Nov 1995 14:04:49 -0700 (MST) > >From: Mindy McWilliams > >Subject: student in need of information > >To: psres@ASUCHM.LA.ASU.EDU > >Mime-Version: 1.0 > > > >I am a high school student in Calgary, Canada who is presently doing a > >school project on photosynthesis. I found your address on a nice list > >pertaining to photosynthesis. I am looking for possible sources of > >information at my level. All information would be of great help to me. Thank > >you for your time. > > > >Mindy McWilliams abe5@educ.ucalgary.ca > >Mindy McWilliams From owner-photosynthesis@net.bio.net Thu Nov 30 22:00:00 1995 Path: biosci!biosci!not-for-mail From: judith_gallant@UQTR.UQuebec.ca (Judith Gallant) Newsgroups: bionet.photosynthesis Subject: phloroglucinol type herbicides Date: 30 Nov 1995 22:20:20 -0800 Organization: BIOSCI International Newsgroups for Molecular Biology Lines: 17 Sender: daemon@net.bio.net Approved: Larry.Orr@asu.edu (Larry Orr) Distribution: world Message-ID: <9511302234.AA46142@neptune.UQTR.UQuebec.ca> NNTP-Posting-Host: net.bio.net Dear photosynthesis people, I'm a student in biophysics, studying PS II. I read an 1995 article lately about products which interest me greatly. They said that as N-octyl-3-nitro-2,4,6-trihydroxybenzamide (PNO8), ... some phloroglucinol derivatives also induce D1 degradation and their capabilities showed a good correlation with their activities as PS II inhibitors (data not show) ... There was no references. I really need to know which phoroglucinol derivates degrate D1, and which do not. Does anybody know? Is their new published data about this? Thank you in advance Judith